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Rear CROSSMEMBER Removal/Installation (2WD): Notes

WARNING: This page is about a different car, the 2017 Mazda CX-9. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
  • Verify that the rear crossmember is securely supported by a jack. If the rear crossmember falls off, it can cause serious injury or death, and damage to the vehicle.
CAUTION:
  • Performing the following procedures could cause an open circuit in the rear ABS wheel - speed sensor wiring harness if it is pulled by mistake. Before servicing, disconnect the rear ABS wheel - speed sensor and set it aside so that the wiring harness will not be pulled by mistake.
  1. Align the rear crossmember component and rear upper arm and mark them.
    Fig 1: Rear Crossmember And Rear Upper Arm Aligning Mark
    G11439013Courtesy of MAZDA MOTORS CORP.
  2. Switch the ignition ON (engine off).
  3. Release the electric parking brake.
  4. Switch the ignition off.
  5. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  6. Remove the wheels and tires. (See WHEEL AND TIRE REMOVAL/INSTALLATION .)
  7. Disconnect the wiring harness clips and connector installed to the rear crossmember.
    Fig 2: Locating Wiring Harness Clips And Connectors
    G11439014Courtesy of MAZDA MOTORS CORP.
  8. Remove the auto leveling sensor.
    Fig 3: Auto Leveling Sensor And Bolts With Torque Specifications
    G11439015Courtesy of MAZDA MOTORS CORP.
  9. Disconnect the rear ABS wheel-speed sensor wiring harness and the electric parking brake motor gear unit connector and set it aside so that it does not interfere with the servicing.
    Fig 4: Rear ABS Wheel-Speed Sensor Wiring Harness And Electric Parking Brake Motor Gear Unit Connector And Bolts With Torque Specifications
    G11439016Courtesy of MAZDA MOTORS CORP.
  10. Remove the following parts:
    1. Floor under cover No. 2 (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
    2. Floor under cover No. 1 (See FLOOR UNDER COVER REMOVAL/INSTALLATION .)
    3. Brace bar
      Fig 5: Tunnel Member And Brace Bar With Bolts And Torque Specifications
      G11439017Courtesy of MAZDA MOTORS CORP.
    4. Tunnel member
    5. TWC (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-G 2.5T] .)
    6. Protector (See REAR LATERAL LINK REMOVAL/INSTALLATION .)
    7. Rear lateral link (See REAR LATERAL LINK REMOVAL/INSTALLATION .)
    8. Rear coil spring (See REAR COIL SPRING REMOVAL/INSTALLATION .)
    9. Rear lower arm (See REAR LOWER ARM REMOVAL/INSTALLATION .)
  11. Disconnect the rear upper arm from the hub support. (See REAR UPPER ARM REMOVAL/INSTALLATION (2WD) .)
  12. Remove in the order indicated in the table.
  13. Install in the reverse order of removal. (See SUSPENSION LINKS INSTALLATION NOTE .)
  14. Inspect the wheel alignment and adjust it if necessary. (See REAR WHEEL ALIGNMENT .)
  15. Perform the headlight auto leveling system initial setting. (See HEADLIGHT AUTO LEVELING SYSTEM INITIALIZATION .)
Fig 6: Rear Crossmember Components With Torque Specifications
G11439018Courtesy of MAZDA MOTORS CORP.
COMPONENT DESCRIPTION

1 Rear crossmember component
(See Rear Crossmember Component Removal Note .)
(See Rear Crossmember Component Installation Note .)
2 Rear stabilizer component
3 Rear upper arm
(See REAR UPPER ARM REMOVAL/INSTALLATION (2WD) .)
4 Rear crossmember mudguard
5 Rear crossmember
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